Zephyr Solar Powered Plane
Zephyr Solar Powered Plane
Learn about a solar powered plane that could fly for months - Zephyr
solar | transport | news
Powered only by
PV solar panels with rechargeable battery backup, The Zephyr is an ultra-light
solar powered aeroplane designed to fly as high as 25 miles for weeks or months without landing. At such heights it will fly far above most weather and the commercial air-lanes in the sky. Therefore it will potentially revolutionise communications acting as a platform far cheaper than the satellites sent into orbit today. The Zephyr was built by
QinetiQ, formerly part of the UK's MOD (Ministry of Defence).
Zephyr Technical Specifications
Zephyr is a High Altitude Long Endurance (HALE) Unmanned Aerial Vehicle (UAV) made from
carbon-fibre. It has a wing span of
18 metres and weighs in at just
30 kg - so light, it can be launched by hand. Propulsion is provided by two electric motor driven propellers.
Power is from an array of ultra-thin
amorphous silicon solar cells (
United Solar Ovonic) which cover the upper surface of the wings. During the daytime any excess generated power is used to recharge
lithium-sulphur batteries (from
Sion Power) which power the motors during the night.
UPDATE 10th September 2007
The
Zephyr solar-powered plane has set a new (unofficial)
world record for the longest duration unmanned flight -
54 hours including two full nights. This smashed the official world record of under 31 hours set in 2001 by a USAF
Global Hawk surveillance aircraft.
During this test flight over White Sands Missile Range in New Mexico, an altitude of
58,000 feet (18,000 metres) was achieved - similar to the cruising altitude of
Concorde.
The technical director of the Zephyr project Chris Kelleher told BBC Newaa, "
This aeroplane is going to go a lot higher and a lot further" and added "
You ain't seen nothing yet."
Videos of Zephyr
A video the launch of the
Zephyr solar powered aeroplane can be viewed here on the BBC News website:
Zephyr Takeoff Video.
Article Last Modified: 15:49, 10th Sep 2007
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